Hello NLG GmbH ,

Your request is not that clear to me- could you elaborate on what exactly it is that you want to achieve.

We have a string, let's say, "text", for which length limitation is set to 5 characters and pixel limitation to 8 pixels.

Length limitation is easy to be checked in Studio in various ways, but I don't know a way to check pixel limitation.

For pixel limitation consider the following:  each letter has a specific/predefined width, for example width of letter 'W' is 5 and width of letter 'I' is 2. So, we need a way to count total pixels for the translation of string "text".

That's impossible.
Because the physical size of the text depends on the target conditions (i.e. what system will display it, using which font, which DPI, etc.). And these conditions are not known to Studio.